music/exemplars/formula_cards/retired/UNMATCHED__35_Dark_Creature_Pursuit__20260807T203643Z.json
{
"RETIRED": {
"at": "2026-08-07T20:36:43+00:00",
"was_track_id": "UNMATCHED__35_Dark_Creature_Pursuit",
"superseded_by": "EX_094",
"sha256": "55a606f9e2773c0ddf8a0ac9f97ff375cc739feac4ccc6b77840a63dda47eea5",
"reason": "the audio this card measured was attached to corpus row EX_094 by operator --id. This card's own id asserts that no corpus row is this file, and that has stopped being true.",
"note": "RETIRED, not repudiated and not deleted. The measurement is real and unchanged; only the claim that the audio is unmatched is superseded. Consumers that glob formula_cards/*.json must see exactly one card per audio file, and after this move they do.",
"retired_by": "harness/music_gen/acquire_exemplar.py :: retire_unmatched_twin"
},
"schema": "formula-card/v1",
"consumer": "docs/proposals/music/MASTERPIECE_PROGRAM.md rung 2 (the archetype synthesis -> MASTERPIECE_STANDARD.md)",
"tier": "RUNG-1 MEASURED",
"legal_posture": "ANALYSIS FOR UNDERSTANDING ONLY. Audio lawfully obtained by Josh, read from disk, measured, and never copied, redistributed, or used as model input of any kind.",
"track_id": "UNMATCHED__35_Dark_Creature_Pursuit",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Christophe Héral & Billy Martin\\Rayman Legends (Original Game Soundtrack\\35 Dark Creature Pursuit.m4a",
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"decoder": "ffmpeg.exe :: ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
"measured_at": "2026-08-07T01:23:51+00:00",
"format_induced_limit": "lossy source (aac); high-band timbre figures carry codec artefacts and the card declares it",
"control": {
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"controls_total": 24,
"ran_at": "2026-08-06T20:41:42+00:00",
"ffmpeg_version": "ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
"note": "This measurement is admissible only because the positive control recovered its planted answers in the same process, immediately before it."
},
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{
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}
],
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},
"global_bpm": 89.1,
"octave_ambiguity_note": "Beat trackers pick a metrical level, and half/double-time readings are a real and known property, not an error -- the rig's own control plants 120 bpm and this estimator returns 60. Every bar figure on this card (time-to-hook in bars, the complexity index's bar length) inherits whichever level was picked, so compare bar counts within a card, never across cards, until rung 2 pins the metrical level per class.",
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"tempo_iqr_bpm": 28.35,
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},
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"note": "Bar arithmetic on this card uses 4 beats per bar at the baseline tempo. The onset period beside it is MEASURED; the signature is not."
},
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}
},
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"mode": "major",
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"modulation_note": "Windowed key agreement below ~0.7 is the modulation signal at rung 1; a pivot-chord map needs symbolic transcription (rung 2)."
},
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"pitch_contour": "DUUDUU---UD----",
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}
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"method_note": "Section 11.1 requires the lane method be declared. Bands are not instruments: two instruments in one octave read as one lane, and one instrument spanning two octaves reads as two. Entry/exit and simultaneity shapes are trustworthy; a roster is not claimed.",
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11.889,
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13.351,
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29.327,
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34.667,
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44.745,
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50.341,
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55.983,
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61.324,
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62.647,
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63.994,
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78.669,
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93.019,
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101.982,
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